CN105142809B - Apparatus and method for removing label from the container dry type being made of plastics - Google Patents

Apparatus and method for removing label from the container dry type being made of plastics Download PDF

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Publication number
CN105142809B
CN105142809B CN201480021593.8A CN201480021593A CN105142809B CN 105142809 B CN105142809 B CN 105142809B CN 201480021593 A CN201480021593 A CN 201480021593A CN 105142809 B CN105142809 B CN 105142809B
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CN
China
Prior art keywords
instrument
rotor
container
scraping
scratch
Prior art date
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Active
Application number
CN201480021593.8A
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Chinese (zh)
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CN105142809A (en
Inventor
弗拉维奥·普瑞威努
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Previero N SRL
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Previero N SRL
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Publication of CN105142809A publication Critical patent/CN105142809A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/083—Removing scrap from containers, e.g. removing labels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/38—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by using scrapers, chains, grains of shot, sand or other abrasive means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10S156/918—Delaminating processes adapted for specified product, e.g. delaminating medical specimen slide
    • Y10S156/919—Delaminating in preparation for post processing recycling step
    • Y10S156/921—Delaminating container component in preparation for recycling, e.g. glass bottle, plastic bottle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10S156/934—Apparatus having delaminating means adapted for delaminating a specified article
    • Y10S156/935—Delaminating means in preparation for post consumer recycling
    • Y10S156/936—Means for delaminating container component in preparation for recycling, e.g. glass bottle, plastic bottle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1168—Gripping and pulling work apart during delaminating
    • Y10T156/1179—Gripping and pulling work apart during delaminating with poking during delaminating [e.g., jabbing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1168—Gripping and pulling work apart during delaminating
    • Y10T156/1179—Gripping and pulling work apart during delaminating with poking during delaminating [e.g., jabbing, etc.]
    • Y10T156/1184—Piercing layer during delaminating [e.g., cutting, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/19—Delaminating means
    • Y10T156/1961—Severing delaminating means [e.g., chisel, etc.]
    • Y10T156/1967—Cutting delaminating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/19—Delaminating means
    • Y10T156/1978—Delaminating bending means
    • Y10T156/1983—Poking delaminating means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Cleaning In General (AREA)
  • Labeling Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention provides the device (1) that a kind of container for being suitable to be made from the plastics by such as PET bottle removes label, it includes：Tubular stator (2) and rotor (3), it is limited to the doughnut (4) axially extended between entrance (5) and outlet (6) for the container；Dragging is installed on the rotor (3) with propulsion member to pull in the doughnut (4) internal rotating with promoting the container；Have first provided with first sophisticated (9a) to scrape instrument (8a) on the tubular stator (2)；The dragging includes scraping instrument (8b) along second provided with second sophisticated (9b) that one or more spiral paths (E1) are distributed with propulsion member；Described first sophisticated (9a) limits the first point-like scratch-off surface (S respectively with described second sophisticated (9b) in the doughnut (4)R1) with the second point-like scratch-off surface (SR2) for the container, wherein, in the first point-like scratch-off surface (SR1) with the second point-like scratch-off surface (SRThe distance between 2) it is held substantially constant relative to the rotor (3) in longitudinal direction and in circumferential direction.In addition the correlation method that label is removed from the container being made of plastics is disclosed.

Description

Apparatus and method for removing label from the container dry type being made of plastics
Technical field
The present invention relates to for removing label from the container being made of plastics, particularly for removing tubular labels from PET bottle Apparatus and method.Although being related in the following description from PET bottle and removing tubular labels, the present invention is similarly applicable for Wherein need from any kind of container part being made of plastics and/or fully remove the label being made up of paper or plastics All these situations.
Background technology
It is well known that for the recyclable container for food, and in particular for the PET bottle of beverage for, first Need to remove the label being made up of paper or plastics, such as by generally associating with aforesaid receptacle by gluing that hot collapsible plastics are made The tubular labels of conjunction.
For example, passing through US4.209.344 and WO9208591, it is known that wherein generally by increasing appropriate cleaning chemistry The cleaning treatment significantly stirred in product hot-tub removes the factory of paper label；In addition to extremely numerous and jumbled, this type Factory also needs to substantial amounts of water consumption and thermal energy consumption.
In another aspect, because its removal for conventional plant is extremely difficult, thus for from container and/ Or for PET bottle removes the tubular labels that are made of plastics, for example, remove the hot shrinkable lables of PVC and there is particular problem；It is real On border, container is followed by the loss of the plastics with high economic value if subjected to big stress just may be damaged.
Due to becoming more next using the pet container with the tubular labels being made of plastics in the food industry in the last few years It is more universal, and in view of the high value of PET material, accordingly, it is intended to which the recovery of the container and/or bottle after the use of recycling is shown Huge Economic Importance.
In the removal process with rear material, PET bottle is generally pressed into bag and the pole together with solid and other foreign matters by bundle Earth deformation by appropriate prerinse step, it is necessary to eliminate these solids and other foreign matters；After prerinse, changing into Particle is so that further before, bottle is ground and by other processing.
Due to plastic label PET recycle during be major pollutants, therefore, it has been developed to multiple technologies with For attempting wholly or largely label to remove from PET bottle before particle is converted into.
For example, a kind of method has been proposed in US4.379.525, wherein by stirring the abrasive grains in hot-tub Imperceptibly container of the grinding with label remains adhered to the label segment of container to remove；Then, occur abrasive grains and place Manage filtering and material of the recirculation step until fully removing label of water.In addition to requiring same complicated system, class As method also cause a large amount of energy expenditures and high financial cost thus.
In DE10308500, it has been proposed that a kind of method for being used to before grinding remove label from container dry type, According to this method, the container with label passes through the device for including having porose stator, and the stator has polygonal cross-section, rotor In its internal rotating, the rotor includes multiple big crosswise instruments, and the cross holding tool is suitable on the container of stator interior Produce axial direction and tangential force.
Although rotor is rotated with the relatively low revolution being included between 500 and 2500 turns per minute, the solution proposed The container that certainly scheme is difficult to be suitable to from recovery and storing process greatly deform label is removed, axially or laterally Extrude label；In addition, the high tangential velocity for the instrument for passing through rotor, however not excluded that container it is a part of may partly rupture so that Bottleneck separate and plastics with high economic value thus loss.
Then, WO2011012113 proposes the device for removing label from pet container or bottle, and it includes cylinder Stator, polygon rotor is provided with multiple axially spaced-apart instruments in the cylinder shape stator internal rotating, the rotor；Instrument is configured to tool There is step profile and angularly position rotatably to pull container and remain adhered to appearance suitable for removal for producing The mechanical stress of the label of device and possible foreign matter.In addition, because in the rotary course of rotor by the instrument produce it is big Mechanical stress and impulsive force, and subsequent container is damaged and loss of plastic, so the solution is not without shortcoming. Especially, due to the step profile of instrument, gap is limited between stator and rotor, the thickness in the gap is not uniform, and It is the style according to the profile of multiple instruments from a region to an area change.In other words, before bottle is in gap Enter, be transverse in the relatively narrow passage region of more protuberance offices of instrument and in the wider logical of the less protuberance office of instrument Road region.This construction may be to bottle formation " wedging " and/or blocking effect, and this typically results in bottle and is subjected to significantly mechanical answer Thus power until rupturing.
The content of the invention
The usual purpose of the present invention is to provide for removing label from the container dry type that is made of plastics, particularly for from PET bottle is complete and/or partly removes the method and apparatus for the tubular labels being made of plastics, and it can be overcome usually using simultaneously And the shortcoming of well-known system.
Especially, it is an object of the invention to provide the different device and not Tongfang for removing label from pet container dry type Method, by its can in the case of not big stress and harmful impact forces from rear container part or fully remove mark Label, it is therefore prevented that container is damaged, thus brings undesirable material to lose.Especially, it is an object of the invention to provide one kind dress Put, it includes stator and rotor, the stator is suitably configured to propelling container or PET bottle with rotor and applied in its surface Equally distributed mechanical action, and cause substantially only have do not make above-mentioned target by may rotation pull with axially The effect of label is removed in the case of the mechanical stress of the target is damaged during advance.
It is used for by device according to claim 1 and by according to claim 15 from the container being made of plastics The method that dry type removes tag can realize object of the present invention and further advantage.
Especially, the dress for being suitable to that label is removed from the container being made of plastics is provided in the first aspect of the present invention Put, it includes：
Tubular stator and rotor, it limits the doughnut axially extended between inlet and outlet for container；
Dragging is installed on the rotor with propulsion member to pull in the doughnut internal rotating with promoting institute State container, it is characterised in that：
Have first provided with the first tip to scrape instrument, and the dragging and propulsion member on the tubular stator Including the cuspidated second scraping instrument that sets being distributed along one or more spiral paths, described first is sophisticated with described second Tip limits the first point-like scratch-off surface and the second point-like scratch-off surface for the container respectively in the doughnut, its In, the distance between the first point-like scratch-off surface and the second point-like scratch-off surface is relative to the rotor in longitudinal direction Substantial constant is kept in direction and in circumferential direction.
Due to this construction, in the formation of aforementioned toroidal chamber interior by the first point-like scratch-off surface and the second point-like scratch-off surface knot The path clearance of conjunction is for container, and path clearance has keeps constant channel cross-section between the entrance of device and outlet, The defect of prior art systems is prevented, wherein container may be bonded at and be blocked in " wedging " region and then damage.
In one embodiment, the position for the scraping instrument being positioned on rotor can be with appropriate adjustable by acting on The expectation mode saved on fixed system is set radial to rotor, so that according to the device of the type of pending container and geometry Optimized operation.
In the second aspect of the present invention there is provided for by device according to the first aspect of the invention from by plastics The method that the container dry type being made removes label, including step：
- described with promoting along the longitudinal path rotation dragging inside the doughnut with propulsion member by the dragging Container；
- during advancing along the longitudinal path, scrape instrument and the described second scraping instrument by described first Label is removed from the container,
Characterized in that, by making the container by first point limited by the tip by the described first scraping instrument The scraping that shape scratch-off surface and the second point-like scratch-off surface limited by the corresponding tip of the described second scraping instrument are produced is moved Make to remove the label, wherein, the distance between the first point-like scratch-off surface and the second point-like scratch-off surface Longitudinal direction is held substantially constant with circumferential in from the entrance to the direction of advance of the outlet.
In the case where showing the assistance of the accompanying drawing of some embodiments of the apparatus according to the invention by non-limiting examples, pass through The other features of following description will be apparent with advantage.
Brief description of the drawings
Fig. 1 is the stereogram for the device for removing external shell part；
Fig. 2 is Fig. 1 side view；
Fig. 3 is along Fig. 2 plane III-III cross section；
Fig. 4 is the partial longitudinal sectional view of device；
Fig. 5 is included in the side view of the rotor in device；
Fig. 6 is along the cross section of the plane VI-VI interceptions in Fig. 5；
Fig. 7 is along the cross section of the plane VII-VII interceptions in Fig. 5；
Fig. 8 shows the details of the scraping unit of rotor；
Fig. 9 is schematically shown is distributed with multiple draggings and the plane outspread drawing of the rotor of propulsion member thereon, including scrapes Instrument；
Figure 10 to Figure 12 shows the first embodiment of scraping instrument with different views；
Figure 13 is the rearview of the scraping instrument according to first embodiment；
Figure 14 is the cross section of the scraping instrument along the plane XIV-XIV interceptions in Figure 13；
Figure 15 to Figure 17 shows the second embodiment of scraping instrument with different views；
Figure 18 is the rearview of the second embodiment of scraping instrument；
Figure 19 is the cross section of the scraping instrument along the plane XIX-XIX interceptions in Figure 18；
Figure 20 is the front view of the first embodiment of stator；
Figure 21 is the stereogram of a part for Figure 20 stator；
Figure 22 is the front view of the second embodiment of stator；
Figure 23 is the side view of Figure 22 stator.
Embodiment
Referring to the drawings, the general features of the apparatus according to the invention 1 is the following discloses for from the appearance being made of plastics Device dry type removes label.
Device 1 is suitable to from any kind of container part being made of plastics after and/or fully dry type and removes mark Sign and be particularly suitable for application to remove the tubular labels that plastics are made from by the PET containers being made or bottle.
Device 1 includes external shell, and the housing has the entrance 5 for being used for introducing pending container, and for treating Container and removed label and/or a part for label outlet 6.
Device 1 is included between entrance 5 and outlet 6 tubular stator 2 that axially extends and with longitudinal axis X and can Towards entrance 5 and outlet 6, both extend beyond the rotor 3 of stator 3.
The doughnut 4 that container advances along it is defined between tubular stator 2 and rotor 3.
Rotor 3 is by two end support unit supports and is operatively coupled to electronically controlled motors 18, the electronically controlled motors 18 Be suitable for as described in detail later entrance 5 and outlet 6 between rotatably pulled along spiral path it is every with propelling container Minute revolution rotation, keep the circumferential speed of rotor 3 be suitable to cause label damaged and part and/or whole removal, together When in the case where not damaging container, container rotation and scrape instrument 8a and second with following public first and scrape instrument 8b Sliding contact.For example, electronically controlled motors 18 are it is so structured that to be included in the angular speed rotor 3 between 500 and 1100rpm.
On rotor 3, there is the first blade 16 at entrance 5 and there is the second blade 17, first leaf at outlet 6 The blade 17 of piece 16 and second can be removed and with rotor 3 be angularly oriented it is fixed.Especially, the first blade 16 relative to turn The longitudinal axis X of son 3 is tilted, to provide container the thrust along direction of advance.Because the second blade 17 needs to perform vessel empty To the function of outlet 6, therefore the second blade 17 provides the straight of sensing orthogonal with foregoing longitudinal axis X parallel to longitudinal axis X orientation to container Run in sky thrust.
Rotor 3 includes cylindrical body, and the cylindrical body has the outside cylinder for being provided with pull with propulsion member thereon Shape surface 10, the dragging is configured to inside doughnut 4 rotatably pull with promoting from entrance 5 to outlet 6 with propulsion member Container.
With the first scraping instrument 8a provided with the first tip 9a on tubular stator 2, but foregoing dragging and pushing-in member Part includes scraping instrument 8b along second provided with tip 9b that one or more spiral path E1 are distributed.
First tip 9a and the second tip 9b limit the first point-like scratch-off surface for container respectively in doughnut 4 SRThe 1 and second point-like scratch-off surface SR2。
First point-like scratch-off surface SRThe 1 and second point-like scratch-off surface SRThe distance between 2 in the longitudinal direction relative to rotor 3 It is held substantially constant in direction and circumferential direction.
Due to scraping the specific arrangements and construction of instrument 8, and due to the specific distribution at corresponding tip 9, in doughnut 4 Inside is defined by the first SR1 and the 2nd SRThe path clearance for container that 2 scraping point surfaces are defined, path clearance tool Have along doughnut 4 and keep constant channel cross-section.This construction advantageously prevent shortcoming intrinsic in prior art systems, its Middle container may be embedded in and be blocked in the region with variable cross section, and it produces " wedging " effect with the damage of container then Should.
In an embodiment will be disclosed in detail below, the position of the scraping instrument 8 being placed on rotor can be with To be set in the desired manner relative in rotor radial by the appropriate adjustable fixed system of operation, with according to pending The type and geometry of container optimize the operation of device.
Only by way of example, annular gap between rotor 3 and stator can have scope 30mm and 60mm it Between thickness.
First scraping instrument 8a is scraped in instrument 8b with second and is each included frusto-conical base portion 23A, partly The needle like section 23B in doughnut 4 is projected into, and is constructed to allow for removedly assembling on the stator 2 and/or on rotor 3 Shank 23C.
Scraping instrument is made up of the material with high mechanical resistance and hardness, and the material has can be by cast iron or cast steel system Into a part and such as wolfram steel or carbon steel tip 9.
Dragging on rotor 3 includes multiple scraping units 7 with propulsion member, wherein each including installed in phase A number of second on same plate-like support base portion 13 scrapes instrument 8b.It is each to scrape unit 7 in the example shown Including scraping instrument 8b essentially according to five second of the diagonal arrangement on respective support base portion 13.However, second scrapes Instrument 8b quantity does not limit with arrangement and can be needed to select according to particular procedure.
Scrape unit 7 and certain axial direction spacing P1 is spaced apart in the direction longitudinally to rotor 3 and in circumference in described Certain angular separation P2 is spaced apart in the direction of rotor 3.Abovementioned steps P1 is properly selected according to the processing important document of some requirements And P2.For example, axial direction step P1 can be included between 50mm and 100mm with non-limiting way, such as it is big for that can have It is approximately equal to 3m length altogether and is included between 400mm and 800mm, such as the rotor of the diameter of 600mm, it can be with Equal to about 70mm.The quantity and mutual distance that scrape unit 7 are properly selected with position to allow the proper flow of container.
Angular separation P2 can be equal to 60 ° in a kind of situation, but diameter according to rotor 3 and specifically use need Will, angular separation P2 can be more than or less than above-mentioned value.
Unit 7 is scraped to be distributed with interlocking along multiple spiral path E1；In other words, the scraping unit of spiral path is relative Axially interlock in the scraping unit for the other spiral paths being wrapped on rotor 3.
Fig. 9 schematically highlights the arrangement for scraping unit 7 on the surface 10 of the rotor 3 shown in flat extend.
If the surface 10 of rotor 3 is separated into longitudinal band 11 and circumferential band 12, it is in fig .9 in the flat of surface 10 Drawn in smooth scope, then should note scraping how unit 7 is distributed and interlaced to cause on each longitudinal band 11 With having at least a portion of one or more scraping units 7 on each circumferential band 12.This makes it possible to obtain on rotor 3 Two scrape instrument 8b good arrangement, and it scrapes the distributions of instrument 8a on the stator 2 and cooperateed with first means more having for container The scraping action of effect.
The the first scraping instrument 8a placed on the stator 2 is oriented towards rotor 3 substantially in a radial direction.
The second each for scraping instrument 8b on rotor 3 is prolonged along the plane orthogonal with the longitudinal axis X of rotor 3 Stretch, and extended by corresponding axle A, axle A is tilted with the angle Ω relative to the straight line Ro for orthogonally inciding longitudinal axis X.Second Each in scraping instrument 8b is oriented in sensing in the direction of rotation R of rotor 3.
The tangential velocity of instrument 8b movements is scraped in view of direction of rotation and second, this of the second scraping instrument 8b is specific The scraping action that orienting makes it on container is correctly and efficiently guided.
Each of the corresponding support base 13 for scraping unit 7 is removedly contained in the respective shell obtained on rotor 3 In housing 14.
Especially, each support base 13 passes through adjustable fixation system SFCouple with rotor 3, the adjustable fixed system Unite SFPosition enable in the radial direction D of the support base 13 relative to rotor 3RIt is middle to change.Thus, it is possible to select second to scrape Desired projecting degrees of the wiping instrument 8b in doughnut 4 is so as in the first point-like scratch-off surface SR1 scrapes with the second point-like Wipe surface SRDesired distance is set between 2.
As best seen from, gap is limited between base portion 13 and casing base 14 in the figure 7, the gap, which can be accommodated, to be had The spacer element of suitable thickness so as to determine scrape unit 7 relative to the surface 10 of rotor 3 desired protrusion.
In the first embodiment, scraping instrument 8 is arranged on by reference picture 10 to Figure 14 by appropriate fixing device 19 In fixed position on stator 2 and/or rotor 3, this fixing device 19 includes ring-type element 19a, collar nut element 19b, lock Determine the ring 19c and safety screw 19d engaged with the hole 19e obtained on collar nut element 19b.
In second embodiment, first, which scrapes instrument 8a and/or second, scrapes instrument 8b by being limited by support section 20 Rotatable connector 15 be respectively mounted on stator 2 with rotor 3, support section 20 have opening 21 for from it is all The appropriate annular seating 15a that joint element such as western lattice ring 15b coordinates receives the handle of instrument.This construction enables scraping instrument to surround Corresponding axle is rotated freely through, and reaches the more effective operation of instrument and with equal above the sophisticated all surfaces of each scraping instrument The benefit for the slow abrasion that the mode of even distribution is carried out.
Stator 2 especially by it is multiple can mutually couple with can the part of firmware be made.Showing to implement with disclosed by example In mode, stator 2 is limited by being securely attached to mutual four parts via appropriate fixing device.Such as institute in Figure 22 and Figure 23 Show, in one embodiment, stator 2 has round-shaped.
In the preferred embodiment shown in Figure 20 and Figure 21, stator 2 has the section of polygonal shape.This shape has Mean that this container undergoes the percussion that more aggravates and rupturing thus during rotation is pulled sharply, this draws Rise significantly with strong interaction and container against scraping instrument 8 slip.
Place on the stator 2 first scrape instrument 8a along the multiple parallel rows separated at an angle to each other and/or edge The row arrangement of spiral.
In an embodiment of device 1, one scraped in unit 7 that propulsive thrust scrapes unit 7 ' can be defined to Point it is configured on container apply propulsive thrust, the propulsive thrust is opposite with its normal advance in 6 axial direction is exported.Especially Ground, this propulsive thrust scrape unit 7 ' it is corresponding second scraping instrument 8b is distributed according to one or more spiral parts, this or Multiple spiral parts are wound in the direction opposite with the spiral path E1 of another the second scraping instrument 8, and this is in another side Face promote container in the axial direction in advance.By such a mode, propulsive thrust scraping unit 7 ' applies on container and tended to The propulsive thrust of pace in reducing it in the axial direction.Doughnut 4 too hurriedly, is prematurely left this prevent container, In another aspect, it is ensured that they are maintained in doughnut 4 enough time to receive the appropriate scraping action of instrument to remove Whole labels.
It is different from known other types of devices, first scraping instrument 8a and second scraping instrument 8b do not produce it is harmful Impact stress or in the case of causing damage to container, is only simply operated so that label is damaged or scrape from container with certain rub Wipe.In this manual, with reference to there is frusto-conical portion 23A and other needle-like portions in doughnut 4 are partly projected to Divide the first of 23B to scrape instrument 8a and second and scrape instrument 8b.At the same time this geometrical construction makes it possible in scraping instrument 8 Suitable distance is kept between end and narrow space is kept between the base segments of scraping instrument 8, so as to avoid container Block.
However, in the case where the instrument of scraping is provided with and is used to apply on label and scrapes the tip with tearing motion, can be with Contemplate other geometric configurations of scraping instrument.For example, the instrument of scraping can be by being terminated with pointed or somewhat round end Simple cylindrical pin is constituted；This scraping instrument can protrude through the inside of stator 2 part, and it is for example equal to slightly larger than or small In the half of the radial height of doughnut 4；In addition, the distance between scraping instrument 8 or spacing must be chosen to provide label At the same time substantial amounts of tear prevents the bottle or container in deformation state between continuous instrument with scraping point Obstruction or stop in space.
In operation, container in device 1 is sent to by the dragging including scraping unit 7 with pushing away by entrance 5 Enter component rotatably to pull and be axially advanced along the longitudinal path inside doughnut 4.During advance, pass through first Scraping instrument 8a and scrape label to remove from corresponding container by the second scraping instrument 8b.Due to scraping the structure of instrument Make, container is by the first point-like scratch-off surface S limited by the tip by the first scraping instrument 8aR1 and by passing through second The second point-like scratch-off surface S that scraping instrument 8b sophisticated 9b is limitedR2 scraping actions produced.Due to the first SR1 and the 2nd SR2 Scrape the distance between point surface longitudinally with being circumferentially held substantially constant the fact, realize for removing label Effective scraping action, it holds in the case of the risk for being blocked or wedging in the region with variable cross section without container OK.
During removal is handled, the air flow produced by the rotation by rotor 3 is evicted removed label from or moved The label segment removed.
By described in the accompanying drawings with showing, it is apparent that have been provided for allowing to from may be made of plastics Container dry type remove label method and apparatus, especially from container in the case of not big stress and harmful impact forces Or PET bottle removes tubular labels, it is therefore prevented that container is damaged and subsequent undesirable material loss.Especially, due to The present invention, device is provided with stator and rotor, and it can apply mechanical action on the surface of a container, and the mechanical action equably divides Cloth and cause do not make above-mentioned bottle or container by rotation pull with axis advance during may damage their machine Only substantially there is the effect for removing label in the case of tool stress.
It is to be further understood that only passing through the example of the method according to the invention and general features and device Some preferred embodiments, set forth described in accompanying drawing with display.It is possible thereby to whole device or part thereof and to phase The operating method answered makes other variations or modifications, from without falling beyond the scope of claim.

Claims (15)

1. a kind of device (1) for being suitable to remove label from the container being made of plastics, it includes：
Tubular stator (2) and rotor (3), which defines the doughnut for the container (4), the doughnut entrance (5) with Axially extend between outlet (6)；
Dragging and propulsion member are provided with the rotor (3) to be used to pull and push away in the doughnut (4) internal rotating Enter the container, it is characterised in that：
Have first provided with first sophisticated (9a) to scrape instrument (8a) on the tubular stator (2), and the dragging with Propulsion member includes scraping instrument along second provided with second sophisticated (9b) that one or more spiral paths (E1) are distributed (8b), described first sophisticated (9a) is respectively defined with described second sophisticated (9b) in the doughnut (4) to be held for described First point-like scratch-off surface (S of deviceR1) with the second point-like scratch-off surface (SR2), wherein, the first point-like scratch-off surface (SR1) with the second point-like scratch-off surface (SRThe distance between 2) in the longitudinal direction relative to the rotor (3) and week It is held substantially constant into direction, and
Wherein, described first instrument (8a) is scraped substantially in a radial direction towards the rotor (3) orientation, and wherein, institute Each stated in the second scraping instrument (8b) extends along the plane orthogonal with the longitudinal axis (X) of the rotor (3), and described second Each in scraping instrument (8b) has corresponding axle (A), and the axle (A) is relative to the straight line orthogonal with the longitudinal axis (X) (Ro) tilt an angle (Ω) and pointed to along the direction of rotation (R) of the rotor (3).
2. device according to claim 1, wherein, described first scrapes instrument (8a) scrapes instrument (8b) with described second In the needle like section (23B) for each including frusto-conical base portion (23A), being partly extended in the doughnut (4), And be configured to be removably attached on the stator (2) and the handle portion (23C) on the rotor (3).
3. device according to claim 1, wherein, the dragging includes scraping work by certain amount second with propulsion member Has the scraping unit (7) that (8b) is limited, the scraping unit (7) is spaced apart in the longitudinal direction along the rotor (3) Certain axial spacing (P1), and certain angular separation (P2) is circumferentially being separated in the direction of the rotor (3).
4. device according to claim 3, wherein, the scraping unit (7) along multiple spiral paths (E1) distribution with Staggeredly, the scraping unit of spiral path axially interlocks relative to the scraping unit of other spiral paths.
5. device according to claim 3, wherein, the rotor (3) includes being divided into multiple longitudinal bands (11) and week To the cylindrical surface (10) of band (12), and wherein, the scraping unit (7) is distributed on the cylindrical surface (10) With staggeredly causing there is at least the one of one or more scraping units (7) on each longitudinal band (11) and each circumferential band (12) Part.
6. device according to claim 1, wherein, described second scrapes instrument (8b) is arranged on multiple in a distributed fashion In support group portion (13), each support base (13) has platy structure and is removably contained in the rotor (3) in the respective shell housing (14) obtained on.
7. device according to claim 6, wherein, each support base (13) passes through adjustable fixation system (SF) with Rotor (3) connection, the adjustable fixation system enables position in the radial direction of the support base (13) (DR) middle change, and so that the second scraping instrument (8b) degree prominent in the doughnut (4) can change Become, so that the first point-like scratch-off surface (S can be setR1) with the second point-like scratch-off surface (SR2) expectation between away from From.
8. device according to claim 1, wherein, described first, which scrapes instrument (8a) and described second, scrapes instrument (8b) By so as to be separately mounted to around the rotatable connector (15) that the corresponding axle is rotated freely on the stator (2) With on the rotor (3), being uniformly distributed with improving operation effect and obtaining in the sophisticated whole surface of each scraping instrument Slow abrasion.
9. device according to claim 1, wherein, the scraping unit (7) it is each on, corresponding second scrapes Wiping instrument (8b) is according to the one or more spirals wound in the direction opposite with the spiral path of the other second scraping instruments Part is distributed, to apply the propulsive thrust of the reduction of the pace in tending to make the container in the axial direction on the container.
10. device according to claim 1, wherein, there is the near the entrance (5) on the rotor (3) One blade (16) and the second blade (17) near the outlet (6), first blade and the second blade are removedly And it is angled orientable fixed with the rotor (3).
11. device according to claim 10, wherein, first blade (16) is described relative to the rotor (3) The longitudinal axis (X) is tilted, and second blade (17) is oriented parallel to the longitudinal axis (X).
12. device according to claim 1, wherein, described the first of the stator (2) scrapes instrument (8a) along each other The multiple parallel rows being angularly spaced from and/or the row arrangement along spiral.
13. a kind of be used to do from the container being made of plastics by the device (10) according to any one of the claims The method that formula removes label, including step：
- described with promoting along the internal longitudinal path rotation dragging of the doughnut (4) with propulsion member by the dragging Container, the dragging includes being provided with second sophisticated (9b's) along what one or more spiral paths (E1) were distributed with propulsion member Second scrapes instrument (8b)；
- during advancing along the longitudinal path, scrape instrument (8a) and the described second scraping instrument by described first (8b) removes label from the container,
Characterized in that, by making the container by limited by the tip (9a) by the first scraping instrument (8a) One point-like scratch-off surface (SR1) and pass through the second point-like that corresponding sophisticated (9b) of the described second scraping instrument (8b) limit and scrape Wipe surface (SR2) scraping action produced removes the label, wherein, described second scrapes each orientation in instrument (8b) To be pointed to along the direction of rotation of the rotor (3) (R), and in the first point-like scratch-off surface (SR1) with the second point Shape scratch-off surface (SRThe distance between 2) relative to from the entrance (5) to the longitudinal direction of the direction of advance of the outlet (6) with Circumferentially it is held substantially constant.
14. the method according to claim 13 for being used to remove label from the container dry type being made of plastics, wherein, pass through Label or removed label segment that the air stream discharge produced by the rotation of the rotor (3) is removed.
15. the method according to claim 13 for being used to remove label from the container dry type being made of plastics, its feature exists In the tubular labels being made of plastics are removed from pet container.
CN201480021593.8A 2013-04-15 2014-04-15 Apparatus and method for removing label from the container dry type being made of plastics Active CN105142809B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITMI2013A000615 2013-04-15
IT000615A ITMI20130615A1 (en) 2013-04-15 2013-04-15 METHOD AND EQUIPMENT FOR DRY REMOVAL OF LABELS FROM PLASTIC CONTAINERS
IT000842A ITMI20130842A1 (en) 2013-04-15 2013-05-23 APPARATUS AND METHOD FOR DRY REMOVAL OF LABELS FROM PLASTIC CONTAINERS
ITMI2013A000842 2013-05-23
PCT/IB2014/060731 WO2014170824A1 (en) 2013-04-15 2014-04-15 Apparatus and method for the dry removal of labels from containers made of plastics

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CN105142809B true CN105142809B (en) 2017-09-26

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CN105142809A (en) 2015-12-09
EP2986398B1 (en) 2019-06-12
US9796004B2 (en) 2017-10-24
ES2744319T3 (en) 2020-02-24
ITMI20130842A1 (en) 2014-10-16
EP2986398A1 (en) 2016-02-24
PT2986398T (en) 2019-09-12
HK1217928A1 (en) 2017-01-27
US20160059281A1 (en) 2016-03-03
PL2986398T3 (en) 2020-04-30
ITMI20130615A1 (en) 2014-10-16
JP6441898B2 (en) 2018-12-19
WO2014170824A1 (en) 2014-10-23
JP2016521202A (en) 2016-07-21

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